Energy harvesting substance event monitoring system

An apparatus, comprising:

• an antenna configured to harvest energy and when powered by harvested energy to convey the harvested energy;
• an unpowered indicator configured to exhibit an excursion indicator only when a temperature excursion of a substance has occurred;
• and
• at least one sensor configured to be powered by the harvested energy, wherein the at least one sensor comprises:
• a registration sensor configured to be powered by the harvested energy and when so powered and when the excursion indicator is present, to generate a registration of the excursion indicator;
• and
• a temperature sensor configured to be powered by the harvested energy and when so powered is configured to measure a current temperature of the substance;
• wherein when powered by the harvested energy the apparatus is configured to transmit data comprising the registration of the excursion indicator and the current temperature of the substance.

An apparatus, comprising:

• an energy harvesting device configured to harvest energy and when powered by harvested energy to convey the harvested energy;
• a communication device;
• circuitry configured to be powered by the harvested energy and to be in data communication with the communication device;
• an unpowered indicator configured to exhibit an excursion indicator only when a temperature excursion of a substance has occurred;
• and
• a registration sensor configured to be powered by the harvested energy and when so powered and when the excursion indicator is present, to generate a registration of the excursion indicator;
• wherein when powered by the harvested energy the circuitry is configured to transmit data comprising the registration of the excursion indicator via the communication device.

A method, comprising:

• removing a delivery device comprising a substance from cold storage;
• warming the substance;
• establishing communication with an energy harvesting substance event monitoring system associated with the delivery device by providing energy for an energy harvesting device in the energy harvesting substance event monitoring system;
• and capturing data from the energy harvesting substance event monitoring system, wherein the data comprises whether or not a passive sensor in the energy harvesting substance event monitoring system indicates a temperature excursion of the substance has occurred.